Introduction

1Fontela_FR_BETA4a-Block 4.4-Question 9

Barcelona 12-15 May 2003

Introduction

• Deregulation of the market: facilities to new producers

• Increase the order of the mathematical model• Need of model reduction to simplify studies:

– Impacts studies, real-time energy management, control regulation design,…



Static Reduction

• Aggregation of different networks components

• Comparison with ARENE simulator

G_

MV/LV

GED

MAS

L1 L2

L3 L4

C1

C2C3

VOLTAGE ARENEP (kW)

ARENEQ (kVar)

AGREGE P (kW)

AGREGE Q(KVar)

ERRORP(%)

ERRORQ(%)

19 kV 33.47 19.81 33.18 20.97 0.87 5.820 kV 33.46 21.54 33.04 22.56 1.88 4.7321 kV 33.52 23.39 32.96 24.42 2.3 4.43



Dynamic Reduction

• Modal Reduction Analysis– Particularly interesting to stability studies,

computation of generator regulations gain

• Dynamic equivalents– Physical model

– Aggregated equivalent load

– Aggregated equivalent generator

DG

MV/LV



Dynamic Reduction

voltage profile comparison

11.45 11.5

11.55 11.6

11.65 11.7

11.75 11.8

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 Network buses

Voltage (kV)

Complete Network Reduced Network

Voltage profile comparison in an urban French network0.3% deviation in the worst case



Conclusions

• Test of different methodologies of reduction• Reduction of the number of variables to compute in

the programs• Reduction in time simulation (ARENE simulator)• Possibility of model reduction implementation in a

tool

Introduction

Documents

Transcript of Introduction